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Finding the Third Proportional to 555,424 and 1,220,072

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Solution

The third proportional to 555,424 and 1,220,072 is: 2,680,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,424 : 1,220,072 = 1,220,072 : x
  2. Step 2: Convert to fraction form
    555,424/1,220,072 = 1,220,072/x
  3. Step 3: Cross multiply
    555,424x = 1,220,072 × 1,220,072
  4. Step 4: Simplify right side
    555,424x = 1,488,575,685,184
  5. Step 5: Solve for x
    x = 1,488,575,685,184/555,424
  6. Step 6: Final answer
    x = 2,680,070.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.